Crushing-gear.



E. B. SYIVIONS.

CRUSHING MACHINE.

APPLICATION man luLv 19. lem.

- Patentedlveb. 19,1918.

3 SHEETS-SHEET l.

E. B. SYIVIONS. cRusHlNG MACHINE.

APPLICATION FILED JULY I9. 1916.

3,256,843, Patentd'Feb.19,1918.

a SHEETS-SHEET 2. l'

@Ara/7% E. B. SYMONS.

CRUSHING MACHINE. l APPLICATION F|L;D1uLY-l9.1915.

Patllted Feb. 19, 1918-;

s SHEETS-SHEET a.

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EDGAR B. SYMONS, OF WINNETKA, ILLINOIS, ASSIGNOR TO SYIVIONS BROTHERS COM- PAN Y, OF WINNETKA, ILLINOIS, A CORPORATION 0F SOUTH DAKOTA.

CRUSHING-MACHINE.

Specification Vof Letters Patent.

Patenten rei. is, rais.

Application led July 19, 1916. Serial No. 110,030.

To all whom t may concern:

Be it known that I, EDGARv B. SYMoNs, a. citizen of the United States, residing at lVinnetka, in the county of Cook and State of Illinois, have invented' a certain new and useful Improvement in Crushing-Machines, of which the following is a specification.

My invention relates to improvements in crushing machines, and has for one object to provide a new and improved form of crushing machine which will be simple in construction, easy to assemble, light in weight, and which will be long lived and will require a minimum of power to operate it. Other objects of my invention will appear from time to time throughout the speci- My invention is illustrated more or less diagrammatically in the accompanying drawings, whereinj Figure 1 isa vertical section through my machine;

Fig. 2 is a section along the line 2 2 of Fig. 1 v

Fig. 3 is a section along the line 3 3 of Fig. l;

Fig. 4 is a section along the line 4 4 of Fig. 3; y

Fig. 5 is a section alongthe line 5 5 of Fig. 1;

Fig. 6 isa plan view of the centralportion of one of the crushing disks; showing modified form.

Fig. 7 a section along the line 7 7 vof Fig. 6.

Fig. 8 is a Fig. 3.

Likeparts are indicated by like characters in all the drawings.

A is the first base plate adapted nto be section along the line f'8 8 of supported on any suitable 'foundation not here specifically illustrated. This plate carries near its outer edge, a cylindrical wall A1. This wall has atF one point an out Wardly extending portion A2 which carries the bearing A3. In this bearing is rotatably mounted the horizontal drive shaft A4. The outer end of the bearing A3 carries oil rings A5, which coperate with a sleeve A6 on the.` shaft A*i to prevent egress of oil from the housing or ingress of dust and gritI thereto. This shaft is adapted to be rotated by power applied from any suitable source the belt wheel A7 keyed to the end of the in this plate B is a rigid stationary guide sleeve B2 braced by the webs B3. Rotatably mounted within the sleeve B2 is an eccentric sleeve B4, there `being anti-friction bearing surfaces interposed between the upper and lower ends of the eccentric sleeve and the fixed sleeve B2. The eccentric sleeve has at f its lower end, a miter gear B5 in mesh with a miter gearB6 keyed to the inner end of the shaft A4, the plate B being cut away as shown to permit the two gears to engage. The weight of this sleeve is'carried by friction bearing segments B" between removable plates B8, B9 pinned respectively to the boss B10 on the base A. and to the lower side of the hub 'B11 of the miter gear B5.

C is an annular track supporting wall rigidlymounted on the annular rib Con the plate Bv immediately above the wall A8. The wall-C- is cut away at C2 over the This wall carries a track C3 uponwhich travels a series of bearing rollers C4 held in radial position by a iioating collar C5. Resting upon these rollers is a floating track C6. It will be noted thatthese roller bearings have cylindrical bearing surfaces,

divided into twg zones, the outer being of greater diameter than the inner, and that the-tracks have two separate, annular bearasA track surfaces. This ring C5 carries an oil trough C7 which feeds oil to the bearings upon which the rollers are mounted through a. duct C8;

D is a rotating supporting plate. It is provided with an annular downwardly extending ange D]L resting on the track C6 has spherical so that the plate is supported on the main frame by means of the tracks and the roller bearing. Fingers D2 extend down from the rotating plate and pins pass through the ends of these fingers and the track C3 to hold them together. D3 is a sleeve extending downwardly from the rotating plate and in rotary engagement with the fixed sleeve B2 whereby the plate D is centered, supported and guided. Extending 'downwardly from the outer periphery of the plate is an annular flange D4. This annular flange D4 carries a gear D5 on the inside adjacent its lower edge, which gear is in mesh with a miter pinion D6 keyed to the shaft A4. The extreme lower edge of the flange D4 annular flange D2, D2 respectively, one on the outside, the other on the inside of the upper edge of the wall A1, which wall A1 is notched or cut away as at D9 to assist in preventing egress of oil and ingress of dust. The u pper surface of the plate D is recessed as indicated, the bottom of the recess being substantially flat and horizontal, the. side wall being drawn about a sphere so as to provide a spherical guide bearing or guide surface D10.

E is a ball wedge. It is asshown a relatively thin lenticular plate having on the bottom an annular flat bearing surface E1, resting/on the plate D, and at the top a curved spherical bearing lsurface E2. This upper part of the wedge is provided with a central depression. The shaft E3 extends downwardly from the center of the ball wedge, and is in rotatable engagement with the hollow interior portion of the eccentric sleeve B4, there being. a babbitted bearmg E4 for that purpose. The shaft E3 1s hollow and the hollow pipe or passage extends clear up through the ball wedge as indicated at E5. E3 is a tilting plate. It has aspherical surface to engage the spherical surface E2 and rests thereupon. It also surfaces E7 in engagement with the spherical surfaces D10. Resting upon the upper flat surface of this plate E.a 1s a removable crushing disk E8.

-Arranged about the outer periphery' of the plate D, overhanging the flange D4, is an annular flange F. which has arranged at spaced intervals thereabout, the bosses F1, integral with the plate D. These bosses are bored out to hold the pins F2, which are provided with enlarged portions 3' above the upper surface of the bosses and are screw-threaded at their lower ends whereby the' nut F4 may be used to draw them down lnto position. F5 is a dust or guard plate resting on the upper surface of the plate near its periphery, and this dust plate 1s provided' with a rib F6 engaging a groove F7 in the plate D.

The outer edge of the 4plate F 5 has e terminates in an inner and outerl downwardly extending cylindrical flange F 3. The inner edge has an upwardly extending cylindrical flange F2, which projects up between the edge of the tilting plate EG and the guard ring F1o carried thereby. The plate F5 is provided with the bosses F11 surrounding each of the pins F3 and resting on the bosses is an auxiliary dust catching plate F12 which projects outwardly beyond the pins F2 and inwardly to just clear the ring F10.

G is a sleeve mounted on the pins F2 and resting upon the plate F12. Resting upon the sleeve G is an annular ring G1 having a lip G2'extending outwardly away from lthe sleeve G. G3 is a spring pressed heavy annular collar resting upon the ring G1, its inner wall being screw-threaded at G4. Springs G5 rest upon the collar G3 and contact at their upper ends the ring G3. which ring is also mounted on the pins F2, but this ring unlike the collar G3 is not free to move. It has an annular wall G7 extending down and resting upon the ring G1. The pins F2 extend up through itl and the nuts G3 are tightened up to hold this collar rigidly in position so that the collar G3 may rise if the springs areI compressed, while the remainder of the structure remains in fixed position.

H is an adjusting disk plate. It has about its periphery an upwardly extending screw-threaded flange H1 in screw-threaded engagement with the collar G3. This plate H is upwardly coned and has mounted on its under side the conical crushing disk H2 held in position by the collar H3.v and engaging the disk at-its inner periphery and in screwthreaded engagement with a nut H* on the upper surface of the disk H. This conical disk as shown. terminates in a substantially flat annular ring which normally is but very slightly inclined to the disk ES at its periphery. The part H1 has an outwardly extending flange H5 overhanging the. screw- 110 threaded parts G4. and an annular protecting ring H6 hangs downwardy therefrom in slidable engagement with a part of the rings G3 to protect the screw threads. H7 are set screws in the flange H5 adapted to 115 engage the ring G3 to lock the parts against rotation and insure that the screw-threaded adjustment once made will remain constant. Projecting upwardly above the flange H5 are a series of cylindrical lugs H3. These lugs are as shown in Fig. 2, provided for the purpose of manipulating this collar and rotating it to make the adjustment of the crushing disks toward and from one another. Turn buckles H3. having at either end eyes H10. are used. One eye would be placed over one of the pins F2, the other over one of the lugs H11. By this'means pressure maybe exerted to rotate the parts with respect one to the other. In the position shown in Fig. 2, however, the turn buckles are working against one another and have been tightened up to hold the parts against rotation in their locked position.

In Fig. 3 is shown part in plan and partin section, the chute which catches the material after it is crushed and discharges it to a suitable source of storage or discharge. J is an annular inner wall of varying depth. The upper edge about its entire .periphery comes up immediately under the overhanging part F9. The height of the wall varies because it always terminates just at and in engagement with the inclined chute bottom J 1. This inclined bottom comes to the upper apex J2 of the diametrically opposed sides of the machine. From both sides of each apex it slopes very sharply down for a quarter of a revolution to a low point J3 where it discharges into chutes J1 on opposed sides. The outer wall of the hopper J 1 projects up above the wall to a point substantially level with the crushing disk E8. and is provided with a thick heavy reinforcing part JG upon which the material discharged by centrifugal force from `the crushing zone will be impinged. This inner reinforcing part is removable so that as the discharge of the material wears it can be replaced without replacing the entire housing. The annular ring J7 extends up from the wall .l5 to a point above the discharge from the crushing Zone where is provided an annular ring J8 extending inwardly toward the ring G1 and overhanging it so as to prevent rise of dust or other particles intoI the other part of the machine. Still above the part JB is a cylindrical wall J1. this wall carrying a floor J11. The hopper .T11 extendsv down from the floor and discharges into the crushing zone through the ring H3, and material to be crushed is placed upon this floor and then fed through the hopper in the usual way.

The central part of the plate E6 is hollowed out at K and projecting out radially from this hollowed out part K are pockets K1. These pockets K1 are larger at the bottom than at the top so that the bolt head K2 may be contained therein while the bolts K3 extend up through the narrow portion of the pockets. K'1 isV a filler disk located in and partiall \Y overhanging the crushing disk E* by means of the cooperating flanges K1. K, The bolts K3 extend up through this disk, and nuts K7 are screw-threaded on .them to clamp the disk down to lock the crushing disk in position. In-my preferred form a conical guard KS rests on the small disk K1 and protects the upper ends of the screw bolts and the nuts, so that material which is to be crushed or material from the crushing zone will not till in about these fastening members, and thus they can shown in Figs. 6 and 7, the central disk K9 is provided with a series of more or less triangular apertures as shown, and the circular disk K10 closes them covering the bolt heads. The disk is channeled or grooved or cut away at K11 and a cotter pin K12 passes through a projection K13 and holds the disk in position.

It will be evident that while I have shown in my drawings an operative device, still many changes might be made both in size, shape and arrangement of parts without departing from the sp-irit of my invention, and I wish therefore, that my drawings be regarded as in a sense diagrammatic.

On one side I have shown an arrangement wherein the upper sharply inclined portion of the discharge chute is cut away. Doors are provided in the walls of the housing on either side so that the operator may b v opening them get into the space inside so as to remove the nuts to take off the upper part of the crushing head. When the machine is in'operation` material will be deposited upon this flat surface and will assume the proper angle of inclination for the discharge of material into the discharge opening, that is to say, the material makes its own fioat.

The use and operation of my invention are as follows:

As the material which has been crushed is discharged by centrifugal force violently from between the crushing plates, most of it passes clear out to be discharged into the I surrounding hood. A certain portion, however, will strike upon thel sleeves surrounding those bolts which hold the disks together; such material will rebound and strike against the flange projecting out,- wardly from the tilting plate. Some of this material will again be discharged by centrifuga-l force, the remainderwill drop down and be discharged beneath the annular plate. This discharge will be induced partially by a current of air, which current of air is set up b v the sleeves surrounding the holding pins acting as a centrifugal fan; the result is no dust can possibly pass up beneath the flange 'on the tilting disk to enter the oiling system.

The material which is thus discharged, when it finds its way out into the dust h ood, will be discharged by gravity in two dlrections on opposite sides of the machine, owing .wear makes this necessary.

The upper crushing disk is spring held, a large number of these springs being provided about the periphery, so that if the machine is overloaded, or if particles which cannot be crushed get into it, the springs will give permitting ythe crushing plate or vdisk to rise without breaking of any part of the machine. There is a' large number of these springs and their power is very great, and in order that the crushing plate may be adjusted or replaced without going to the trouble of taking out and tightening up each of these springs, means are provided for holding a screw threaded ring in position on one side of the springs and a holding ring on the other; thus making an as-l sembly which may be removed or replaced without changing the tension in the springs. This may be done b v merelv loosening the nuts at the lower ends of the holding bolts, when the entire assembly consisting in the plate supporting apparatus, including springs, adjusting devices, dust guards, etc., may be removed as a unit without in any way changing the positions of the parts with respect to one another, the crushing pla-te may be removed from the assembly and a new plate put in place and the parts then returned to their original positions without anv changein adjustment or a1'- rangement taking place.

For the purpose of adjustingthe distance between the crushing plates the upper plate is carried on a member screw-threaded in position, and set screws are provided for locking this member against rotation. Such a set screw lock is not alwavs sufficient, andy turn buckles with eyes at either end are provided, /one eye going over apin on the crushing plate carrier, theother over a part (in this case one 'of the holding bolts) on thespring anchor ring. For turning the screw threadedv part to adjust the plate these turn buckles are all arranged to pull in the same direction. For locking the plate against ro# tation some of them are changed so that they pull in opposite directions ;.\thus, when they are tightened up, no rotation is possible in either direction.

,The rotating base plate is supported on a roller thrust bearing which is adjacent to the outside of the rotating plate'at a point far removed from the center of rotation.

The upper track of this roller bearing` is loosely pinned to the under side of the r0- -tating plate for convenience in assembly.

mounted on and j The plate itself is rotatably centered and guided by the upper end of fixed sleeve; which contains on its inside a bearing for the eccentric sleeveA Which actuates the wedge plate. This sleeve is stiilened by a series of webs, projecting upwardly and inwardly from a flange which rests on a foundation wall in the bottom of the housing and carries the sleeve. I

The eccentric sleeve is supported at the bottom on a friction thrust bearing, and is rotated by a miter gear on the drive shaft in mesh with a similar gearfon the sleeve. The rotating head itself is driven by a miter sition by a collar overlying a' portion of the' disk; the holding bolts may easily be slipped in -position in the support before the collar is,placed. lVhen the nuts on the holding bolts have been tightened up a suitable cover is applied to prevent entrance of fine material into the pocket, which would interfere with the action of the holding bolt.

Since the wear on the crushing disk is very great, and they must frequently be removed, it is essential to provide convenient means for removing the upper crushing head assembly so that access may be had to the disks. The upper head is held inlposition by a large number of holding bolts, and in order that the operator may have access to the nuts holding them for removal the upper portion of each side of the discharge chute is cut away. Doors are provided on either side of the housing so that the`operator,by opening these doors, may have access to the space immediately inside the chute where these nuts are located; thus4 ample room is provided for unscrewing these nuts topermit the removal of the upper half of the crushing head.

I have used the term crushinghead as applied to the place where the crushing is done. This crushing head consists in 'a rotatinof base plate, which is guided by a bearino on a central fixed sleeve, .and supported b v rollerl thrust bearing adjacent to the pe- `ripherv. thus preventino tipplng and making a. solid foundation. A crushing disk is mounted on a tilting` plate supported in a truncated, spherical bearing on the rotating base plate. The lenticular wedge plate, interposed between the rotating base plate and the tilting plate, is gyrated'by an eccentric sleeve rotating inside the fixed sleeve, and containing the shaft which depends downwardly from the wedge plate.

The rotating base plate, together with the tilting plate and a crushing diskon the tilting plate form what is in effect the lower half of the crushing head. This lower half is fixed in position, though free to rotate, The upper half of the crushinghead is not only Inounted upon the lower half', but'removable therefrom. This upper half conthe anchor ring, and yieldingly held against movement, away from the lower part of the crushing head, by a series of powerful y springs under compression, and an adjusting plate screw threaded in the anchor ring and carrying an upper crushing disk. The adjusting plate may be rotated in its screw threaded engagement to move the upper crushing disk toward and from the lower, and means are provided for locking it against rotation so that an adjustment once made is for operative purposes permanent.

The holding pins which tie the parts of the crushing head together have shoulders intermediate their ends and nuts at their upper ends clamp all the parts of the upper half of the head together as a unit against such shoulders. The nuts at the lower end, when the parts are in position, lock the upper half.

of the crushing head in position in respect tothe lower half. If the upper nuts are released the upper half of the head may be dis'- assembled. If the lower nuts only are released the upper half of the head maybe removed asa unit, and thus the interior of the crushing head will be open for cleaning or for removal of the crushing plates.

I claim: l

l. In a crushing machine a crushing disk, a supporting plate therefor, both of them being centrally apertured, a plug located within and snugly fitting both apertures and having a flange overlying the portion of the crushing disk, and separate means for drawing the plug longitudinally toward the suppprting plate to clamp the disk againstthe p ate.

2. In a crushing machine a crushing disk, a supporting plate therefor, both of them being centrally apertured, a plug located within and snugly fitting both apertures and havinga fiange overlying the portion of the crushing disk, and means for drawing the plug longitudinally toward the supporting plate to clamp the disk against the plate, said means comprising bolts in engagement with the plug, pockets in the side walls of the apertured plates containing the bolts, and nuts on the bolt ends in engagement with the plug, the heads of the bolts being held against longitudinal movement within said pockets.

3. In a crushing machine a crushin disk, a supporting plate therefor, both o them bein centrallyv apertured, a plug located Awithin and snugly fitting both apertures and having a flange overlying the portion of the crushing disk, and means for drawing the -plug longitudinally toward the supporting ing centrally apertured, a plug located within and snugly fitting both apertures and having a flange overlying the portion of the crushing disk, and means for drawing the plug longitudinally toward the supporting plate to clamp the disk against the plate, the supporting plate being provided with a centrally disposed pocket smaller in diameter than and in line with the central aperture, bolt engaging slots having open sides communicating with such pocket said slots being enlarged toward the bottom, the plug holdmg means comprising bolts whose heads engage such enlarged slot portions and whose shanks lie in such slots, the bolts being held by engagement with the slots against longitudinal movement, and being held only by their engagement with the plug against transverse movement.

5. The combination with a rotary chamber having an annular discharge opening about its periphery, of a housing inclosing such discharge opening, the bottom floor of the housing being divided into a plurality of sharply linclined panels terminating at their lower extremities in a discharge chute.

6. The combination with a rotary chamber having an annular discharge opening about its periphery, of a housing vinclosing such discharge opening, the bottom floor ofthe housing being divided into a plurality of sharply inclined panels terminating at their lower extremities in adischarge chute, such panels being joined at their upper extremities by short flat surfaces below the discharge opening.

7. The combination with a rotary chamber having an annular discharge opening about its periphery, of a housing inclosing such discharge opening, the housing having concentricwalls, one of the walls being outside of and projecting both above and below the discharge opening,tl1e other being an inner wall and termina-ting below the opening, means for preventing discharge of material down inside the inner wall.

8. The combination with a rotary chamber having an annular discharge opening about its periphery, of a housing inclosing such discharge opening, the housing having concentric walls, one of the walls being outside of and. projecting both above and below the discharge opening, the other being an inner wall and terminating below the opening, means for preventing discharge of material down inside the inner wall, the bottom of the housing being formed of inclined panels joined at their upper extremities by short flat surfaces, doors in the walls `of the housing immediately above such short flat surfaces and in register one with the other.

9. A crushing machine comprising a housing, operating mechanism therein, a crushing head closing the housing and coutaining a crushing chamber, and means for preventing the entrance of solid particles from the crushing chamber into the housing.

10. A crushing machine comprising a housing, operating mechanism therein, a crushing head closing the housing and containing a crushing chamber, and means for preventing the entrance of solid particles from the crushing chamber into the housing, said means comprising interlocking flanged rings, one on the head, the other on the housing.

11. A crushing machine comprising a housing, operating mechanism therein, a crushing head closing the housing and containing a crushing chamber, and means for preventing the entrance of solid particles from the crushing chamber into the housing, said means comprising interlocking flanged rings, one on the head, the other on the housing, and an annular plate parallel with the line of discharge from the chamber located intermediate the flanged gears and surrounding the rings.

1Q. A crushing machine comprising. a housing, operating mechanism therein, a crushing head closing the housing and containing a crushing chamber, and means'for preventing the entrance of solid particles from the crushing chamber into the housing, said means comprising interlocking flanged rings.l one on the head, the other on the housing, and an annular plate parallel With the line of discharge from the chamber located intermediate the flanged rings and surrounding the rings, said plate being mounted on and adapte-d to rotate with the head.

13. A crushing machine comprising a housing, operating mechanism therein, a crushing head closing the housing and containing a crushingchamber, and means for ,preventing the lentrance of solid particles from the crushing ychamber mto the houslng, said means comprismg interlocking flanged rings, one on the head, the other on the housing. and an annular plate parallel with the line of discharge from the chamber located intermediate the flanged rings and surrounding the rings, and means for producing a radial current of air outwardl)7 along both sides of said plate. and particu-v larly beneath it.

14. In a crushing machine. a 'crushing disk, a plate upon which it is rigidly mounted, a support for such plate, yielding means for holding the plate against movement Within the support. and means for removably. anchoring the support in position in the 'crushing machine.

15. In a crushing machine, a crushing disk, a plate upon which it is rigidly mount'- ed, a support therefor, and yielding means for holding the plate in fixed position with respect to the supports, the plate, the supports, the disk and yielding means being ed upon one part of the head, a crushing,

disk spring held in the other part of the head, the latter part of the head being mounted and attached to the first part and removable therefrom as a unit without interfering with the adjustment of the crushing disk with respect thereto.

18. A crushing machine having a crushing disk, a plate upon which it is mounted,

a ring in which the plate is screw-threaded.

a support, the ring being slidably mounted in the support, vielding means for holding the ring against movement With-in the support, and means for holding the support together.

19. A/crushing machine having a crushing disk, a plate upon which it is mounted, a ring in which the plate is screw-threaded, a support, the ring being slidably mounted in the support, yielding means for holding Ithe ring against movement Within the supl port, and means for holding the support together, and means for supporting the disk, the plate,` the ring and the associate parts all as a unit in t-he crushing machine.

20. A crushing machine having a crushing disk, a plate upon which it is mounted, a ring in which the plate is screw-threaded, a support, the ring being slidably mounted in the support, yielding means for holding the ring against movement Within the support,and means for holding the support together, and means for supporting the disk, the plate, the ring and the associate part-s all as a unit in the crushing machine, such parts being removable from the crushingr machine as a unit Without changing their relative position.

'21. A crushing machine having a crushing disk, a supporting plate therefor, a base upon which the plate 1s mounted, a sleeve extending upwardly from the base and in engagement with the plate to center it, and

means adjacent the' periphery of the platefor supporting it and guiding it.

22. A crushing machine comprising a roroller bearing located Within the wall beneath the plate, and a guide member upon which the plate is rotatably mounted within the bearing.

23. A crushing machine comprising a rotating crushing head, a plate forming the bottom of the head, a wall downwardly depending from the periphery of the plate, a roller bearing located within the wall beneath the plate, and a guide member upon which the plate is rotatably mountedwwithin the bearing. the guide member comprising a fixed rigid lupwardly projecting sleeve, a larger sleeve downwardly projecting from the plate and inclosing it.

24. A crushing machine comprising a rotat-ing crushing head. a plate forming the bottom of the head, a wall downwardly depending from the periphery of the plate, a roller bearing located within the wall beneath the plate, and a guide member upon which the plate is rotatably mounted within the bearing, the guide member comprising a fixed rigid upwardly projecting sleeve, a larger sleeve downwardly projecting from the plate and inclosing it, an eccentric disk slidably mounted on the top of the plate, an eccentric sleeve within the fixed sleeve and a driving pin extending down from the disk into the interior of such eccentric sleeve.

25. In a crushing machine a substantially fixed support, a crushing disk mounted thereupon, a second crushing disk in opposition to the first disk, and a support therefor, a collar normally xe-d in position with respect to the main support in which one of the crushing disk supports is screwthreaded, means for rotating said support to change the position of the disk with respect one to another, said means comprising v pins projecting upwardly from the supports and from the disk, turn buckles having eyes engaging their pins and adapted to move the parts and hold them in position.

26. In a crushing machine a cylindrical housing a bearing sleeve therein an eccentric sleeve mounted for rotation within and a carriage for rotation upon such bearing sleeve and a wall on the. carriage in registerwith the cylindrical wall of the housing adapted to coperate with itito close the housing. l

Q7. In a crushing machine a cylindrical housing, a bearing sleeve therein, an eccentric sleeve mounted for rotation within and a carriage for rotation upon such bearing sleeve and a wall on the carriage in register with the cylindrical wall ofthe housing adapted to coperate with itto close the housing, a crushing head mounted on the carriage and means responsive to the rota- 28. In a crushing machine a cylindrical housing, an inner flange concentric therewith, a plate carried by the flange and a central bearing sleeve mounted thereon, an eccentric sleeve mounted for rotation within and a carriage mounted forrotation upon the .bearing sleeve, a downwardly extending wall on the carriage adapted to interlock with the wall of the housing and to close the housing.

29. In a crushing machine a cylindrical housing, an inner flange concentric therewith, a plate carried by the flange and a central bearing slee/ve mounted thereon, an eccentric sleeve mounted for rotation within and a carriageJ mounted for rotation upon the bearing sleeve, a downwardly extending wall on the carriage adapted to interlock with the wall of the housing and to close the housing, a crushing head mounted on the carriage and means responsive to the rotation of the carriage and the eccentric sleeve for crushin material within the crushing head and discharging it therefrom.

30. In a crushing machine a cylindrical housing, an inner flange concentric therewith a plate carried by the ilange and a central bearing sleeve mounted thereon, an eocentric sleeve mounted for rotation within the bear-ing sleeve and a thrust bearing supporting it, acarriage mounted for rotation upon the sleeve supported by the plate and having a downwardly extending wall adapted to interlock with the housing wall to close the housing.

31. In a crushing machine a cylindrical housing, an inner flange concentric therewith. a plate carried by the flange and a central bearing sleeve mounted thereon, an eccentric sleeve mounted for rotation within the bearing sleeve and a thrust bearing supporting it, a carriage mounted for rotation upon the sleeve supported by the plate and having a downwardly extending wall adapted to interlock with the housing wall to close the housing, means for rotating the plate, a crushing head carried by the plate and means supported thereby and operated by the eccentric sleeve for operating the crushing head.

In testimony whereof, I aiiix mv signature in the presence of two witnesses this twentysixth day of June, 1916. f

EDGAR B. SYMONS.

Witnesses NORA B. NELSON, W. M. SYMoNs. 

